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Find the area and the perimeter of a triangle (shown below)

PLZZZ

Find The Area And The Perimeter Of A Triangle Shown Below PLZZZ class=

Sagot :

Answer:

A = 120, P = 55

Step-by-step explanation:

Triangle

Area = (bh)/2

A = (20x12)/2

A =240/2

A = 120

Perimeter = a + b + c

to find c, use a^2 +b^2 = c^2

20^2 + 12^2 = c^2

400 + 144 = c^2

544 = c^2

c = about 23

20 + 12 + 23 = 55

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